The Lille winger had made the Blues, Manchester City and Manchester United sweat on his signature, but his signing at Stamford Bridge should provide a further platform to build a squad capable of climbing up the table.

Roberto Di Matteo’s men might have won the Champions League and the FA Cup in the 2011-12 season, but the club’s league form was sub-par.

The Blues have already announced Marko Marin will join the ranks and their spending is not expected to end there.

Should Di Matteo - who is acting as Stamford Bridge’s interim manager at the moment - not be hired permanently then a new boss could herald a string of further arrivals.

Chelsea will hope Fernando Torres and his attacking team-mates can fill the shoes of outgoing icon Didier Drogba, whose final touch for the club will be forever remembered by the club’s supporters as the spot-kick which won them their first Champions League trophy.

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